MC74LCX257DR2 データシートの表示（PDF） - ON Semiconductor
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MC74LCX257DR2 Datasheet PDF : 8 Pages
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MC74LCX257
DC ELECTRICAL CHARACTERISTICS
Symbol
Characteristic
Condition
VIH
HIGH Level Input Voltage (Note 2)
VIL
LOW Level Input Voltage (Note 2)
VOH
HIGH Level Output Voltage
VOL
LOW Level Output Voltage
II
Input Leakage Current
IOZ
3−State Output Current
2.3 V ≤ VCC ≤ 2.7 V
2.7 V ≤ VCC ≤ 3.6 V
2.3 V ≤ VCC ≤ 2.7 V
2.7 V ≤ VCC ≤ 3.6 V
2.3 V ≤ VCC ≤ 3.6 V; IOH = −100 mA
VCC = 2.3 V; IOH = −8 mA
VCC = 2.7 V; IOH = −12 mA
VCC = 3.0 V; IOH = −18 mA
VCC = 3.0 V; IOH = −24 mA
2.3 V ≤ VCC ≤ 3.6 V; IOL = 100 mA
VCC = 2.3 V; IOL = 8 mA
VCC = 2.7 V; IOL = 12 mA
VCC = 3.0 V; IOL = 16 mA
VCC = 3.0 V; IOL = 24 mA
2.3 V ≤ VCC ≤ 3.6 V; 0 V ≤ VI ≤ 5.5 V
2.3 ≤ VCC ≤ 3.6 V; 0 V ≤ VO ≤ 5.5 V;
VI = VIH or VIL
IOFF
Power−Off Leakage Current
VCC = 0 V; VI or VO = 5.5 V
ICC
Quiescent Supply Current
2.3 ≤ VCC ≤ 3.6 V; VI = GND or VCC
2.3 ≤ VCC ≤ 3.6 V; 3.6 ≤ VI or VO ≤ 5.5 V
DICC
Increase in ICC per Input
2.3 ≤ VCC ≤ 3.6 V; VIH = VCC − 0.6 V
2. These values of VI are used to test DC electrical characteristics only.
TA = −40°C to +85°C
Min
Max
1.7
2.0
0.7
0.8
VCC − 0.2
1.8
2.2
2.4
2.2
0.2
0.6
0.4
0.4
0.55
±5
±5
10
10
±10
500
Unit
V
V
V
V
mA
mA
mA
mA
mA
AC CHARACTERISTICS tR = tF = 2.5 ns; RL = 500 W
Limits
Symbol
Parameter
Waveform
VCC = 3.3 V ± 0.3 V
CL = 50 pF
Min
Max
TA = −40°C to +85°C
VCC = 2.7 V
CL = 50 pF
Min
Max
VCC = 2.5 V ± 0.2 V
CL = 30 pF
Min
Max
Unit
tPLH
Propagation Delay
1
1.5
6.0
1.5
6.5
1.5
7.2
ns
tPHL
In to Zn
1.5
6.0
1.5
6.5
1.5
7.2
tPLH
Propagation Delay
1, 2
1.5
7.0
1.5
8.5
1.5
9.1
ns
tPHL
S to Zn
1.5
7.0
1.5
8.5
1.5
9.1
tPZH
Output Enable Time to
3
1.5
7.0
1.5
8.5
1.5
9.1
ns
tPZL
High and Low Level
1.5
7.0
1.5
8.5
1.5
9.1
tPHZ
Output Disable Time From
3
1.5
5.5
1.5
6.0
1.5
6.6
ns
tPLZ
High and Low Level
1.5
5.5
1.5
6.0
1.5
6.6
tOSHL
Output−to−Output Skew
1.0
ns
tOSLH
(Note 3)
1.0
3. Skew is defined as the absolute value of the difference between the actual propagation delay for any two separate outputs of the same device.
The specification applies to any outputs switching in the same direction, either HIGH−to−LOW (tOSHL) or LOW−to−HIGH (tOSLH); parameter
guaranteed by design.
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